NCT05005897

Brief Summary

Globally, vitamin B12 deficiency is one of the most common micronutrient deficiencies. Poor status is also seen in affluent countries such as in Norway. Vitamin B12 is crucial for normal cell division and differentiation and necessary for the development and myelination of the central nervous system. Deficiency is also associated with impaired fetal and infant growth. In the proposed study we will measure the effect of daily oral vitamin B12 supplementation infants on neurodevelopment. We also aim to measure the impact of B12 supplementation on several other outcomes. Study design: Individually randomized double-blind placebo-controlled trial breastfed infants who will be assigned to a screening group (in which measurements will be obtained immediately) or a control group (in which serum will be stored and measurements done after one year). Pregnant women will be informed about the study during their first antenatal visit at the clinic and that we will re-approach them on their 6-week visit to their public health nurse. Infants who are deficient will be treated with peroral or intramuscular injections with 400 µg cyano-cobalamin. Infants in the control group will not be offered any intervention their blood sample will be stored for one year and then analyzed for the same nutrients as the intervention group. Outcomes: Primary: (i) neurodevelopment in children measured at 12 months of age (ii) growth in children measured by attained weight and length at 12 months. Secondary: (i) neurodevelopment and cognitive functioning in children later in life

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
600

participants targeted

Target at P75+ for phase_2

Timeline
42mo left

Started Dec 2021

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress56%
Dec 2021Oct 2029

First Submitted

Initial submission to the registry

August 9, 2021

Completed
7 days until next milestone

First Posted

Study publicly available on registry

August 16, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

December 8, 2021

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 15, 2025

Completed
4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 15, 2029

Expected
Last Updated

April 18, 2023

Status Verified

April 1, 2023

Enrollment Period

3.9 years

First QC Date

August 9, 2021

Last Update Submit

April 14, 2023

Conditions

Keywords

NutritionVitaminsBreastfeedingInfantNeurodevelopmentGrowthClinical trial

Outcome Measures

Primary Outcomes (3)

  • Neurodevelopment

    Bayley Scales of Infant Development 4th edition

    12 months of age

  • Prevalence of vitamin B12 deficiency

    Number of children with elevated plasma homocysteine or low cobalamin

    1-3 months of age

  • Prevalence of other vitamin deficiencies

    Number of infants with vitamin deficiencies other than vitamin B12 deficiency

    1-3 months of age

Secondary Outcomes (5)

  • Neurodevelopment measured by the Ages and Stages Questionaire

    4-12 months of age

  • Vagal tone

    12 months of age

  • Eye tracking

    12 months of age

  • Neurodevelopment later in childhood

    5 years

  • Adverse events

    3 months after treatment with vitamin B12

Other Outcomes (1)

  • Thyroid function

    12 months of age

Study Arms (2)

Screening - treatment

EXPERIMENTAL

From 6 weeks of age, infants will be screened for elevated plasma total homocysteine concentrations. Those who have a concentration above the defined cut-off will be treated with cobalamin (vitamin B12).

Biological: Cyanocobalamin

Control

NO INTERVENTION

The control-group sample will be stored and analyzed when the child is 12 months old. Those with elevated tHcy will contribute to the control group.

Interventions

CyanocobalaminBIOLOGICAL

Intramuscular injection of 400 µg cobalamin to children with elevated thcy at enrollment

Also known as: Vitamin B12
Screening - treatment

Eligibility Criteria

Age1 Month - 2 Months
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Availability of informed verbal consent
  • Plan to reside in the defined study area for the next 12 months
  • Mothers intend to breastfeed their children for at least 8 months, and exclusively for 4 months

You may not qualify if:

  • Severe systemic illness requiring hospitalization
  • Growth retardation
  • Severe congenital malformations
  • Plasma cobalamin concentration \<148 pmol/L (These children will be treated for vitamin B12 deficiency and not included in the RCT, but will be included in the cohort design)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Innlandet Hospital Trust

Lillehammer, 2615, Norway

RECRUITING

Related Publications (10)

  • Hay G, Johnston C, Whitelaw A, Trygg K, Refsum H. Folate and cobalamin status in relation to breastfeeding and weaning in healthy infants. Am J Clin Nutr. 2008 Jul;88(1):105-14. doi: 10.1093/ajcn/88.1.105.

    PMID: 18614730BACKGROUND
  • Torsvik I, Ueland PM, Markestad T, Bjorke-Monsen AL. Cobalamin supplementation improves motor development and regurgitations in infants: results from a randomized intervention study. Am J Clin Nutr. 2013 Nov;98(5):1233-40. doi: 10.3945/ajcn.113.061549. Epub 2013 Sep 11.

    PMID: 24025626BACKGROUND
  • Dror DK, Allen LH. Effect of vitamin B12 deficiency on neurodevelopment in infants: current knowledge and possible mechanisms. Nutr Rev. 2008 May;66(5):250-5. doi: 10.1111/j.1753-4887.2008.00031.x.

    PMID: 18454811BACKGROUND
  • Kvestad I, Taneja S, Kumar T, Hysing M, Refsum H, Yajnik CS, Bhandari N, Strand TA; Folate and Vitamin B12 Study Group. Vitamin B12 and Folic Acid Improve Gross Motor and Problem-Solving Skills in Young North Indian Children: A Randomized Placebo-Controlled Trial. PLoS One. 2015 Jun 22;10(6):e0129915. doi: 10.1371/journal.pone.0129915. eCollection 2015.

    PMID: 26098427BACKGROUND
  • Bjorke-Monsen AL. Is exclusive breastfeeding ensuring an optimal micronutrient status and psychomotor development in infants? Clin Biochem. 2014 Jun;47(9):714. doi: 10.1016/j.clinbiochem.2014.05.022. Epub 2014 May 17. No abstract available.

    PMID: 24845709BACKGROUND
  • Forssman L, Ashorn P, Ashorn U, Maleta K, Matchado A, Kortekangas E, Leppanen JM. Eye-tracking-based assessment of cognitive function in low-resource settings. Arch Dis Child. 2017 Apr;102(4):301-302. doi: 10.1136/archdischild-2016-310525. Epub 2016 Aug 22.

    PMID: 27551061BACKGROUND
  • Graziano P, Derefinko K. Cardiac vagal control and children's adaptive functioning: a meta-analysis. Biol Psychol. 2013 Sep;94(1):22-37. doi: 10.1016/j.biopsycho.2013.04.011. Epub 2013 May 4.

    PMID: 23648264BACKGROUND
  • Strand TA, Taneja S, Ueland PM, Refsum H, Bahl R, Schneede J, Sommerfelt H, Bhandari N. Cobalamin and folate status predicts mental development scores in North Indian children 12-18 mo of age. Am J Clin Nutr. 2013 Feb;97(2):310-7. doi: 10.3945/ajcn.111.032268. Epub 2013 Jan 2.

    PMID: 23283502BACKGROUND
  • Bjorkevoll SMG, O'Keeffe M, Konijnenberg C, Solvik BS, Sodal AF, Kaldenbach S, McCann A, Ueland PM, Kvestad I, Ersvaer E, Holten-Andersen MN, Bakken KS, Strand TA. Infant vitamin B12 status and its predictors - cross-sectional baseline results from an ongoing randomized controlled trial. Am J Clin Nutr. 2025 Sep;122(3):803-810. doi: 10.1016/j.ajcnut.2025.06.029. Epub 2025 Jul 1.

  • Bakken KS, Kvestad I, Bjorkevoll SMG, Solvik BS, Kaldenbach S, McCann A, Holten-Andersen MN, Ersvaer E, Konijnenberg C, Strand TA. Vitamin B12 status in infancy and the effect of a vitamin B12 injection in infants with subclinical vitamin B12 deficiency: study protocol for a register-based randomised controlled trial. BMJ Open. 2023 Apr 20;13(4):e069102. doi: 10.1136/bmjopen-2022-069102.

MeSH Terms

Conditions

Vitamin B 12 DeficiencyBreast Feeding

Interventions

Vitamin B 12

Condition Hierarchy (Ancestors)

Vitamin B DeficiencyAvitaminosisDeficiency DiseasesMalnutritionNutrition DisordersNutritional and Metabolic DiseasesFeeding BehaviorBehavior

Intervention Hierarchy (Ancestors)

CorrinoidsTetrapyrrolesPyrrolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingMacrocyclic CompoundsPolycyclic Compounds

Study Officials

  • Tor A Strand, M.D. / Ph.D.

    Sykehuset Innlandet HF

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 9, 2021

First Posted

August 16, 2021

Study Start

December 8, 2021

Primary Completion

October 15, 2025

Study Completion (Estimated)

October 15, 2029

Last Updated

April 18, 2023

Record last verified: 2023-04

Data Sharing

IPD Sharing
Will share

We plan to share data with other researchers.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Data will be available not later than 5 years after the study have completed enrollment and the first year of follow-up of all children.
Access Criteria
Data available on request. In order to meet ethical requirements for the use of confidential patient data, requests must be approved by Regional Committee for Medical and Health Research Ethics in Norway.

Locations